...N. Fekrazad; T. L. Bergman A three-dimensional model is used to predict the power output and internal temperature distribution of a small proton exchange membrane fuel cell stack. Of particular interest is the influence of nonuniform stack compression on thermal conditions inside the fuel cell...

...N. Fekrazad; T. L. Bergman This technical brief reports new findings regarding the strong relationship between the temperature of the bipolar plates of a proton exchange membrane fuel cell stack and thermal conditions within the membranes of the stack. The unique feature of the study is the notion...

...N. Fekrazad; T. L. Bergman A two-dimensional model of a proton exchange membrane fuel cell stack is developed. Taking advantage of the geometrical periodicity of the stack, the model is used to predict the detailed thermal and electrochemical characteristics of the fuel cell. Using recently...

... fuel cells thermal conductivity temperature distribution chemical interdiffusion Proton-exchange membrane fuel cell (PEMFC) heat transfer anisotropy contact resistance Fuel cells (FCs) are electrochemical devices that convert chemical energy directly into electricity. Over the past...

...J. J. Hwang The thermal-fluid behaviors in a porous electrode of a proton exchange membrane fuel cell (PEMFC) in contact with an interdigitated gas distributor are investigated numerically. The porous electrode consists of a catalyst layer and a diffusion layer. The heat transfer in the catalyst...

... ,” J. Electrochem. Soc. 0013-4651 10.1149/1.1611489 , 150 ( 11 ), pp. A1432 – A1439 . Yi , J. S. , and Van Nguyen , T. , 1999 , “ Multicomponent Transport in Porous Electrodes of Proton Exchange Membrane Fuel Cells Using the Interdigitated Gas Distributors ,” J. Electrochem. Soc...

...Hongtan Liu; Tianhong Zhou; Ping Cheng The objective of this review is to provide a summary of modeling and experimental research efforts on transport phenomena in proton exchange membrane fuel cells (PEMFCs). Several representative PEMFC models and experimental studies in macro and micro PEMFCs...

... in the JOURNAL OF HEAT TRANSFER . Manuscript received by the Heat Transfer Division August 25, 2003; revision received February 26, 2004. Associate Editor: S. P. Vanka. 25 August 2003 26 February 2004 16 06 2004 proton exchange membrane fuel cells porous materials flow through porous...